The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 11, 2016
Filed:
Dec. 05, 2014
Mitsubishi Electric Corporation, Tokyo, JP;
Mitsuaki Futami, Tokyo, JP;
Yuki Hasegawa, Tokyo, JP;
Toru Yoshihara, Tokyo, JP;
Shinji Yagyu, Tokyo, JP;
Tetsuya Nishimura, Tokyo, JP;
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Abstract
In a semiconductor laser array of the present invention, a plurality of laser elements (first to fifth laser elements) are disposed such that waveguides of the laser elements are parallel to one another, each of the plurality of laser elements includes a front-end-surface reflection film on a front end surface serving as a light emitting surface of the waveguide, each of the plurality of laser elements includes a rear-end-surface reflection film on a rear end surface opposite to the front end surface with the waveguide sandwiched between the front end surface and the rear end surface, the front-end-surface reflection films of at least two of the plurality of laser elements have different reflectances, the rear-end-surface reflection films of the plurality of laser elements have the same reflectance, and the plurality of laser elements are driven by a single power supply.